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pentagon [3]
4 years ago
6

What kind of body covering does a toad have?

Biology
1 answer:
den301095 [7]4 years ago
7 0
It is covered in skin.

This skin excretes a mucous layer which keeps it moist and also acts in protecting the animal from pollutants.
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If an enzyme inhibitor binds at a site other than the active site of the enzyme, the nature of the inhibitor is described as
icang [17]

Answer:

B. non-competitive

Explanation:

As opposed as competitive inhibition, the non-competitive one does not bind with the active region of the enzyme. However, it does reduce the efficiency of the reaction because it changes the protein structure, making it unavailable for substrate.

Reversibility is related to the possibility of the reaction to be undone. If the bond is covalent, the enzyme will not return to its active state, so that would be a non-reversible bind.

7 0
3 years ago
During which stage of mitosis do the centromeres split
larisa86 [58]
Mitosis is split into 4 phases.
P - prophase
M - metaphase
A - anaphase
T - telophase

During Metaphase, Chromosomes align singly along the metaphase plate.

During Anaphase, kinetochore microtubules shortens and non-kinetochore microtubules lengthens, allowing the chromosomes' centromeres to separate.

Therefore, the answer is anaphase.

P. S. centromeres separates, not split.
7 0
3 years ago
For plants and other organisms to develop differences among their respective species the alleles of their genes must contain var
olasank [31]

A) <u>Mutation</u> is the original source of variations for plants and other organisms  which develops differences among their respective species

Explanation:

Genetic variation leads to the natural differences between each individual and among individuals of a species. The main cause for this variation is due to alleles that cause variations in the composition of genes or the DNA sequences.  

A mutation is a genetic variation which leads to the creation of a new allele in a species population. Each variation in the DNA sequence leads to an allele formation and each allele leads to a difference in character or trait between individuals since they are the alternate version of the original genes.  

Although genetic variations could be brought about by crossing over, random fertilization, or independent assortment; mutation is the original source because it provides the basic raw material for all the evolutionary changes.

8 0
3 years ago
What does an enzyme’s structure have to do with a catalytic activity?
igomit [66]

Answer:

Explanation:

The proteins in enzymes are usually globular. The intra and intermolecular bonds that hold proteins in their secondary and tertiary structures are disrupted by changes in temperature and pH. This affects shapes and so the catalytic activity of an enzyme is pH and temperature sensitive.

6 0
4 years ago
What traits would help a predator be more “fit” to survive in each environment?
Murrr4er [49]
White snowy place- color of the animals fur. For example white to blend in with the snow

6 0
3 years ago
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